The product takes activated carbon fiber as its inner material and net-fabric and non-woven fabric as the cover. Activated carbon fiber has excellent functions such as dehumidification, deodorization, warm keeping, germ king and releasing negative irons as well as adsorbing human energy to produce far-infrared radiation. It can regenerate repeatedly and is a world-standard adsorption material of high-efficiency and multifunction. Soft and comfortable, the insoles can also prevent dermatophyte and athlete’s foot if worn insistently.